Emergency-tire.



S. DAVIDSON. EMERGENCY TIRE.

APPLICATION FILED 00124, 1912.

1 1 1 0,904. Patented Sept. 15, 19m.v

OTO-LITHO., WASHINGTON n. cy

rnicn.

SAMUEL DAVIDSON, 0F DETROIT, MICHIGAN.

ElVIERGENOY-TIRE.

nuance.

Specification of Letters Patent.

Application filed October 24, 1912.

Patented Sept. is, 1914. Serial No. 727,479.

To all whom it may concern:

Be it known that I, SAMUEL DAVIDSON, a citizen of the United States, residing at etroit, in the county of Wayne and State of Michigan, have invented certain new and useful Improvements in Emergency-Tires, of which the following is a specification.

his invention relates to emergency tires set forth at length in my prior patents No. 1,052,801, dated February 11, 1913, and No. 1,070,670, dated August 19, 1913.

y present invention is a sectional emergency tire.

Its object is to provide a simple, strong, light, and durable sectional emergency tire, made up ofa number of sections that may be quickly and easily attached to and detached from each other and to and from the wheel rim. f

1 further object is so to design the parts that each section may comprise a segmental steel channel provided with suitable braclc ets seated in the Wheel rim, a segmental solid rubber tire seated in the channel, with special means for securing the rubber the or ends of adjacent sections together, and for finishing the connections so as to have in effect a continuous rubber tread when the emergency tire is placed upon the wheel rim.

e invention comprises the parts, improve ments, and combinations hereinafter 'set forth and claimed.

invention in its preferred form and what I deem to be the best mode of applying the principles thereof; but it is to be understood that within the scope of the appended claims I contemplate changes in form, proportions, and materials, the transposition of parts, and the substitution of equivalent membe s,

without departing from the spirit of my invention.

principles of my invention, applied to a Wheel rim, some of the parts being shown in section. Fig. 2 is a cross section of the tire and rim on a plane indicated by the line 2 in Fig. 1. Figs. 3 and 4; are views of the contiguous ends of the two sections that are bolted together to lock the tire on the rim. 1* 1g. 0 IS a sectional planof the parts shown in Fig. 4 on a plane indicated by the line 5. Fig. 6 is a sectional plan of the parts shown in Fig. 3 on a plane indicated by the line 6. Fig. 7 is a view of the drawbolt with the lock-washer.

Similar reference characters indicate similar parts throughout the several views.

8 is an automobile wheel rim of the clencher type with integral flanges. Although my present invention may be used with any kind of rim, I have shown this special type for the reason that my present invention is adapted to be used upon it, while the specific forms shown in my prior patents are not. I

9, 9, 9 are a complementary series of segmental steel channels, each carrying a corresponding segment 10 of solid rubber tire. The tire may be divided into any suitable number of segments. I prefer to divide it into three segments, however, for the reason that I find that by so doing the segments can be stowed away under the automobile seat. The wire or rod 11 usually provided channel is here made of one continuouswire or rod bent over at 12, making a U-shaped retaining rod for each section of the tire. The opposite ends of each channel are closed by plates 15 and 1.6 respectively and through each plate are two holes 14 for the reception of the retaining rod. he connecting portion 12 bears against the end plate 16, and the free ends are threaded and nuts 13, 13 are screwed thereon which bear against the opposite end plate 15. By this means I am able to secure the tread member firmly seated in the channel; and, if desired, the rubber tread member may be replaced when worn out by removing the retaining rod. The tips of the free ends may be clenched to prevent the nuts from accidentally becoming unscrewed. The end plates are secured to the channel by any suitable means, as by the peripheral extensions 17, 17 secured by rivets 18, 1.8. he face of the end plates 15 against which the nuts bear is flat so that a socket wrench or other suitable tool may be applied to tighten the nut. The other end plate, 16, is formed with a peripherally projecting rib around its top and sides, as shown at 20, 19, 19, forming a hood, which is adapted to butt against the contiguous end assembled the ends will come together with inwardly extending means for interlocking plate 15 of an adjacent section. This hood to bear upon a wheel rim, an end plate seprotects the otherwise exposed ends and cured to each end of each channel independnuts of the retaining rod and conceals them ently of the brackets and closing said end from view. The end plates and the hood and having apertures for the reception of do not extend out radially to the periphery tread-retaining rods and also having inward of the rubber tread member; but the ends of extensions to aiiord means for interlocking the tread members are rabbeted so as to form together the contiguous ends of adjacent lips 30, 31 which are supported on said end sections, and the end plate at one end of each plates and hood, as upon ledge. In racsegmental channel having a hood comprising tice the rubber tread members are cut a little a rib projectin lengthwise of the channel over-length, so that when the sections are and inclosing tie topof the outer face ct said plate, the plate at the other end of each segmental channel having an outer fiat sur some degree of pressure, thus preventing a gap, and torming in effect a continuous tread.

wiseof the respective channels for engaging Each end plate is iormed with an integral the respective treads for retaining said treads in their respective channels, said rods having each atone end ahead and extending through said apertures, the head of each red the contiguous ends of adjacent sections together. Two of these connections are made up of interlocking loops 21 and hooks 22, which permit the sections to be detachably secured together. At the third connection there are the two inwardly extending lu 2e and 23, each formed with a bolt-hole 25, and the lug 24 being formed with a small lug 26 bearing against the opposite extension 23. The bolt 27 is passed through the bolt-holes, a lock-washer 29 is placed thereon, and then the nut 28 is screwed thereon. By means of this draw-bolt the connection may be made easily quickly, and securely; the small lug 26 a ording means, in addition to the rigidity of the other parts, for insuring the square meeting of the hood and opposite end plate.

To each segmental steel channel are se= cured a. number of inwardly extending brackets 32, whose inner ends are formed to fit upon the wheel rim between the flanges thereof; and one of the brackets, 33, in each tire is formed with an inwardly projecting stem 34 which may be placed in the valvestem hole when the tire is applied to the Wheel rim, in order to prevent creeping.

Having thus described my invention, what I claim as new and desire to secure by Letters Patent is:

hooded outer face, and nuts for the other ends of the respective rods, said nuts bearing against the respective flat surfaced; end

the fiat end of the adjacent section.

2. In an emergency tire, the combination of a series ofcompleinentary segmental integral steel channels, brackets secured to each channel between the ends thereof and extending inwardly and formed to bear upon a wheel rim, a series of complementary tread membersseated in the respective channels,

and closing said ends and aiiording anchorages for tread-retaining rods, each end plate being formed with an mtegrally formed inward extension afiording means for interlocking together contiguous ends of adjacent sections, and tread-retaining rods for the respective channels and tread members, each rod being anchored at its opposite ends to the end plates at opposite respective ends of its steel channel, .1 j j t In testimony whereof I have aflixed my signature in presence of two witnesses.

1. In a sectional emergency tire, the com- SAMUEL DAVIDSON V bination of a series of complementary segmental integral steel channels, brackets se- Witnesses: cured to each channel between the ends EMIL JACOB, j thereof and extending inwardly and formed 1 Gno. H. Knionnnn;

tace,,.tread-retaining rods extending lengthbearing against the one plate having the plates, and said segments being arranged so that the hooded end of one engages against end plates secured to the respective ends of H said channels independently of said brackets copies of this patent may be obtained for five cents each, by addressing. thc"'idox nmissioner of Patents.

Washington, D. G. 

